Autographic attachment for cameras



Dec. 21 1926. 1,611,642

, v. E. JOHANSEN AUTOGRAPHIC ATTACHMENT FOR CAMERAS Filed June 21, 1926 Inventor Attorney Patented Dec. 21, 1926.

lJltl'lT'El) STATES PATENT OFFICE.

VICTOR E. JOHANSEN. F OAKLAND, CALIFORNIA.

AUTOGRAPHIC ATTACHMENT FOR CAMERAS.

Application filed June 21, 1926.

* which may be applied to well known forms cameras in place of the autographic dev es ow employed.

iy, the invention has reference to a spring-pressed shutter to cover the opening through which the back of the film is exd for autographing, this shutter being ed with a novel mounting or attachand carrying efhcient means for the shutter to open position and for to literally slide back, whereby to prevent undue exposure of the impression on the film.

The features of the improved construction, and the advantages thereof will become apom the following description and drawings:- 1 is a rear elevation of the co1ndevice showing the shutter in closed n osition,

2 is a vertical section taken approxiupon the plane of the line 2-2 of .i, loolcine in a direction troin rrght to is a sectional view of one of the dea is an inside perspective view 01 shutter, and is similar view ot a fragmentary lhHLlOll of the back of the camerashowing some the parts in position.

to the drawings in detail, it that the reference character 1 I s hash of the camera, the rest nee character 2 designates generally the and the reference character shutter. 2 is of general rectangular conation in outline and embodies an outlly pressed portion at having a marginal hing flange 5 and provided at its top elongated opening 6 through which the usual stylus is inserted. The plate is the Serial No. 117,421.

preferably provided at the top with holders 7 for the stylus (not shown).

Referring now to Fig. l, it will be seen that the plate is provided adjacent its opposite ends with a pair of guide rods 8 upon which the shutter 3 is slidably m untedv The shutter, as shown better in Fig. 5, com

prises a narrow strip of metal 9 provided with top and bottom flanges 10 formed at their ends with apertured ears 11 for passage of the guide rods 8. It will be noted that small coiled springs 12 surround the lower portions of these rods and serve to press the shutter upwardly to closing position. In addition, the shutter is provided on its bottom with a depending lip 13 carrying a stud l4 and above this lip is an outstanding lug 15 to press against the film.

Attention is now directed to Fig. :3, wherein it will be seen that a sleeve 15 mounted for rotation in an opening in the plate and this sleeve is provided on its outer end with a linger knob 17. At its inner end, it is fastened to a longitudinally curved link l4l having a slot through which the aforesaid stud ll passes. It is obvious that this arrangement by turning the knob, the link will acton the stud to pull the shutter 3 downwardly against the action of the spring 12. When thus moved downwardly, it is obvious that the resilient latch 19 riveted on the back of the attaching plate as shown plainly in Fig. 4r is engaged with the adjacent flange 10. Then, there is a spring pressed plunger 20 carried by the sleeve 18 and extending through it so that it may be engaged with the latch for disengaging the same from the flange,

As shown in Fig. (3, a peculiarly shaped reinforcing and backing member 21 is tastened to the inside of the back or the camera, and this is provided with an open ing in registry with a similar opening formed in the back 01" the camera Also an elongated frame 22 is fitted into this open ing and is held in place as shown in Fig. Moreover, a vertical slot 23 is provided in the back of the camera to accommodate the sliding movement of the keeper, This member 21 presses against the film to hold it taut while making the inscription thereon. WVith the arrangement shown, it will be seen that the keeper when moving downwardly, will press this member 21 inwardly to bear against the film for the purpose stated.

In practice, it. is obvious that the shutter 3 is normally closed=- under the action'ot the springs 12. When it isdesirech however", to

make an impression upon the back ot the film in the usual way. the knob 17 is grasped and the sleeve 16 is tnrn'ed'in such away as to cause the link it and-the stud l t to (-ooperate to move the shutter downwardly against the action of the springs,- thus unrior inoperation and rapidity or aetion'to" facilitate autogr'aphing films. The device is easy to operate, ispracticalandpossesses' other obvie'us' adrantages'and features. No

doubt,- however, a clear understanding oi the invention has now been obtei med; and

more lengthy description need 'notbe entered Min or ch anges coining Wit-hut the field o 1? invention claimed may be resorted to it deed A 'l 'av'ing thus described my invention, What I claim as new is 1. In a structure 01 the class described, an attaching'plate provided with a stylus opening a shutter slidahly mounted upon the plate, spring means for automatically closing the shutter, manually operated means for opening the shutter, a latch for holdi the shutter in open position, EDCl'mGMlS'fOI releasing; the latch;

52 Ina structure of the class describe-d, an attaching pl'ate' provi deal 1 With a stylus opening, a shutter slidebly' mounted upon the plate and adapted to cover the opening: means for automatically closing the; sluitte-- and retaining and operating means for the shutter;

Intestimony whereof I my si ture';

VICTOR E. JOHAER EN. 

